Ford Bumper Bar Assembly

[Baldrick]

Hello all, Dad and I recently acquired a 1941 12 cab Ford F15A, It needs some finishing restoration work, brakes, panels etc.
One thing we are having trouble with is putting the bumper and brace bar assembly together, the previous owners assembled it incorrectly, with the bar on the outside of the bumper and we don't know how to bolt it all together with it on the inside.
Below is a picture of ours as it is now, Any pictures or diagrams telling us how to correct it would be greatly appreciated.